废旧橡胶粉与SBS复合改性沥青混合料路用性能及应用技术

发布时间：2018-03-30 03:39

本文选题：道路工程　切入点：CR/SBSCMA　出处：《公路交通科技》2016年04期

【摘要】：为系统研究废旧橡胶粉与SBS复合改性沥青(CR/SBSCMA)的路用性能与应用技术,围绕CR/SBSCMA的制备工艺,CR/SBSCMA混合料的设计方法以及高温性能、低温性能、水稳定性能、力学性能进行了全面的研究,结合在高速公路工程建设中的应用总结了关键施工技术。研究结果表明:密级配CR/SBSCMA混合料具有优良的路用性能和力学性能。相比SBS改性沥青混合料,其高温性能、低温性能提高幅度均较为明显,水稳定性也有一定的改善,且在高温与低温条件下均具有良好的力学性能。应用于寒冷地区既可以提高高温抗车辙性能,也可以改善低温柔韧性。在施工中应严格控制施工温度、存储工艺以及混合料的拌和、碾压等关键工艺,保证施工质量。
[Abstract]:In order to systematically study the road performance and application technology of waste rubber powder and SBS composite modified asphalt CR-SBSCMA, the design method and high temperature performance, low temperature performance and water stability of CR/SBSCMA mixture were studied. The mechanical properties have been studied comprehensively. Combined with the application in highway engineering construction, the key construction technology is summarized. The research results show that the dense gradation CR/SBSCMA mixture has excellent road performance and mechanical performance. Compared with SBS modified asphalt mixture, its high temperature performance is better than that of SBS modified asphalt mixture. The low temperature performance is improved obviously, the water stability is improved, and the mechanical properties are good under the condition of high temperature and low temperature, which can improve the rutting resistance at high temperature. It can also improve the flexibility at low temperature. The construction temperature, storage technology, mixing and rolling of the mixture should be strictly controlled in order to ensure the construction quality.
【作者单位】：长安大学;吉林省交通规划设计院;吉林省交通科学研究所;
【基金】：吉林省科技发展计划项目(20150204055SF)
【分类号】：U414

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